What does the request from the customer regarding the flange contract mean?
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**- SS:★PRE=%Cr+3.3%Mo+16%N ≥25.5 (Actual value) **Test specimen in accordance with paragraph 12.1.12 of 32-SAMSS-004 **RF 125-250AARH **Hardness: FOR ITEM NO.12,88-90, maximum value of 22HRC **FOR ITEM NO.12,88-90: Corrosion test to be carried out in accordance with ASTM A262 Practice E (accepted) **U.T.: FOR ITEM NO.12,88-92, U.T. requirements per ASME SA388/SA508; ASME Section VIII Division 2, paragraph 3.3.4.2 applies to straight and angled beams – results are accepted **P.T. (FOR ITEM NO.12,88-90): Testing to be conducted in accordance with ASTM E165, SA788 S19 – results are accepted * Marking: using stencils **100% of the total quantity is to be tested for P.T
This post was last edited by niat8888 on 2017-1-18 at 14:31. This is what needs to be tested. . **- SS:★PRE=%Cr+3.3%Mo+16%N ≥25.5 (Actual value) This seems to calculate a value similar to the Cr equivalent, with a requirement of being greater than or equal to 25.5 – this is the pitting resistance equivalent. . **Test Specimen as per para.12.1.12 of 32-SAMSS-004: The test specimen shall comply with paragraph 12.1.12 of this standard, MSS-04? **Is RF 125-250AARH a requirement for the sealing surface? **Hardness: ITEM NO.12,88-90 – Maximum hardness required is 22HRC; this is approximately equivalent to HV248 and HB237. **For ITEM NO.12,88-90, corrosion testing is to be carried out in accordance with ASTM A262 Practice E (accepted).** Intergranular corrosion testing is performed using the ASTM A262 E method. **U.T.: For ITEM NO.12,88-92, ultrasonic testing is required (per ASME SA388/SA508, ASME Sec. VIII Div. 2, para. 3.3.4.2 for straight and angle beams); this testing is accepted.** It refers to the requirements outlined in section 3.3.4.2 of SA388/SA508 Volume 8-2. (There seems to be a mistake here; it should be ASTM A388 instead of SA388.) **P.T.: For ITEM NO.12,88-90, penetrant testing is required per ASTM E165 and SA788 S19; this testing is accepted.** 100% of the total quantity is to be tested using penetrant testing per ASTM E165 and SA788 S19. **Marking: Marking is to be done using stencils.** . .
**SS:PRE=%Cr+3.3%Mo+16%N ≥25.5 (Actual) – Requirements for the chemical composition of raw materials. **Test specimens shall comply with paragraph 12.1.12 of 32-SAMSS-004 regarding testing requirements for flanges. **RF 125-250AARH – Requirements for the shape and roughness of the flange sealing surfaces. **Hardness: ITEM NO.12,88-90; maximum hardness of 22HRC. **ITEM NO. 12,88-90: Corrosion testing shall be carried out in accordance with ASTM A262 Practice E (accepted). Intergranular corrosion testing is required per ASTM A262 Method E. **U.T.: ITEM NO.12,88-92; ultrasonic testing is required in accordance with ASME SA388/SA508, ASME Section VIII Division 2, paragraph 3.3.4.2 (for straight and angled beams); this method is accepted. **P.T.: ITEM NO.12,88-90; penetrant testing is required, with 100% of the total quantity to be inspected
**- SS:★PRE=%Cr+3.3%Mo+16%N ≥25.5 (Actual value). PRE is the pitting resistance index for austenitic stainless steels. **The test specimen shall be in accordance with paragraph 12.1.12 of 32-SAMSS-004; this is the standard for sampling during testing. **RF 125-250AARH: requirements regarding the shape and roughness of the flange surfaces. For other details, refer to floors 3 and 4
It feels like some kind of code program; it’s completely incomprehensible